Medicogram5 months ago

Unbelievable shot (Electron micrograph) spotting a sperm penetrating the oocyte outer membrane. Did you know that in order for a successful fertilization to occur, the sperm has to penetrate two layers of an oocyte, not only one! They are corona radiata which is the outer layer, while the inner layer is zona pellucida. Mention your friends to see this image ♥ 📷: •Medicogram• #fertilization #sperm #reproduction #medicine #doctors #embryology #medicogram